Battery Relocation - What size cable is needed?

[Welsh Dan]

As above? I'm thinking of relocating my battery to the boot, to make more room for my intercooler. However, what size power cable is needed? Will 4 gauge be enough, or do I need to go to 2 or even 1 gauge?
Thanks

[rx7veilside]

i relocated mine and have put what is i think 0 gauge or 4 gge it is really thick go for the thickest u can get mine starts fine with no current loss at all..have run mine to rear storage bin

[shaunwil]

I used 2 runs of 4 gauge to the engine bay. Its only rated to about 70amps over any reasonable distance and the egi fuse is 120amp. If you want a single run go for 2 gauge. The negative lead is 0 gauge, huge cable !

Shaun